#include "chain.h"

unsigned int  pixel_number_by_step(double length, double step);
int  bit8_init();
void bit8_close();
void RealString(int is, float *Double);
int  round(double radius, double step, chain ch, unsigned int *nx, unsigned int *ny);
int  cylindr(double width, double hight, double step, chain ch, unsigned int *nx, unsigned int *ny);
int  rectan3(double width, double hight, double step,
      chain ch, chain ch1, chain ch2, unsigned int *nx, unsigned int *ny);
int  rectan1(double width, double hight, double step,
	    chain ch, unsigned int *nx, unsigned int *ny);
